Water resistant design Sealed design of the PSYC Elise SX sports earphones provide sweat and water resistant properties. Designed for extreme sports Withstand shock from heavy motions with ergonomically designed earpiece. Use it for jogging, hiking, gym, cycling or any other sports Engineered to perfection Carefully implemented design, the PSYC Elise SX aims to provide the highest quality sports earphone. Built in NFC Quickly and easily sync your phone/tablet by using NFC technology. Simply touch and go. High audio technology Utilising Bluetooth 4.0 and apTX technology the PSYC Elise SX provides near CD audio quality during work outs. Dual microphones ensure clear communication..